Really unique take on the theme, & mechanics. Some other comments:
- Great art
- I like that the souls have characters
- Personally I feel annoyed that the soul actually affects your movement. I guess tries to show some challenge of going against the player's movement but honestly I felt it to be more annoying than challenging. I would prefer if it does not affect your movement - just having the mechanic of it occasionally "rushing" towards you to hit you is already a really good mechanic